antigen

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Related to Antigen-presenting cells: perforin, Dendritic cells

an·ti·gen

 (ăn′tĭ-jən) also an·ti·gene (-jēn′)
n.
A molecule that is capable of binding to an antibody or to an antigen receptor on a T cell, especially one that induces an immune response. An antigen is usually a foreign substance, such as a toxin or a component of a virus, bacterium, or parasite.

an′ti·gen′ic (-jĕn′ĭk) adj.
an′ti·gen′i·cal·ly adv.
an′ti·ge·nic′i·ty (-jə-nĭs′ĭ-tē) n.

antigen

(ˈæntɪdʒən; -ˌdʒɛn) or

antigene

n
(Biochemistry) a substance that stimulates the production of antibodies
[C20: from anti(body) + -gen]
ˌantiˈgenic adj
ˌantiˈgenically adv

an•ti•gen

(ˈæn tɪ dʒən, -ˌdʒɛn)

n.
1. any substance that can stimulate the production of antibodies and combine specifically with them.
2. any commercial substance that, when injected or absorbed into animal tissues, stimulates the production of antibodies.
3. antigens of a particular type collectively.
[1905–10; anti (body) + -gen]
an`ti•gen′ic, adj.
an`ti•gen′i•cal•ly, adv.
an`ti•ge•nic′i•ty (-dʒəˈnɪs ɪ ti) n.

an·ti·gen

(ăn′tĭ-jən)
A substance that stimulates the production of an antibody when introduced into the body. Antigens include toxins, bacteria, viruses, and other foreign substances. See Note at blood type.

antigen

A molecule recognized as foreign by the body’s immune system, causing the release of antibodies.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.antigen - any substance (as a toxin or enzyme) that stimulates an immune response in the body (especially the production of antibodies)
substance - a particular kind or species of matter with uniform properties; "shigella is one of the most toxic substances known to man"
immunizing agent, immunogen - any substance or organism that provokes an immune response (produces immunity) when introduced into the body
immunology - the branch of medical science that studies the body's immune system
agglutinogen - any substance that acts as an antigen to cause agglutinin production
fetoprotein, foetoprotein - any of several antigens that occur naturally in the fetus and sometimes in adults with cancer
anatoxin, toxoid - a bacterial toxin that has been weakened until it is no longer toxic but is strong enough to induce the formation of antibodies and immunity to the specific disease caused by the toxin; "diphtheria toxoid"
antigenic determinant, epitope, determinant - the site on the surface of an antigen molecule to which an antibody attaches itself
Rh, Rh factor, rhesus factor - a blood group antigen possessed by Rh-positive people; if an Rh-negative person receives a blood transfusion from an Rh-positive person it can result in hemolysis and anemia
Translations
antigen
antigeeni
antigén
antígeno
antigen
antigen

antigen

[ˈæntɪdʒən] Nantígeno m

antigen

[ˈæntɪdʒən] nantigène manti-hero antihero [ˈæntihɪərəʊ] nantihéros m

antigen

nAntigen nt

antigen

[ˈæntɪdʒən] nantigene m

an·ti·gen

n. antígeno, sustancia tóxica que estimula la formación de anticuerpos;
carcinoembriogenic ______ carcinoembriogénico.

antigen

n antígeno; carcinoembryonic — antígeno carcinoembrionario; prostate-specific — (PSA) antígeno prostático específico (APE)
References in periodicals archive ?
In the laboratory, they cultured the proteins with dendritic cells, the immune system's most powerful antigen-presenting cells, which are responsible for helping the immune system recognize and attack invaders.
Immune cells known as antigen-presenting cells need to activate T lymphocytes to trigger them to attack, but in cancer, cells called tumor-associated macrophages tell T lymphocytes to remain dormant, and also foster the development of blood vessels that feed the growing tumor.
Specialists in nanomedicine, nanotechnology, and translational bio-nanotechnology in academia, government, industry, consulting organizations, and regulatory agencies in the US, Europe, Australia, and India address topics such as nanoparticle interaction with erythrocytes, endothelial cells, various types of antigen-presenting cells, complement activation, platelets and the plasma coagulation system, bone marrow cells, nanoparticle use for drug delivery and vaccine adjuvants, sterility and sterilization, the presence of surface contaminants, regulatory considerations for the screening of nanoparticle toxicity to the immune system, the use of animal models to study nanoparticle immunotoxicity, and material characterization.
The non-helper regulatory T cells, or the antigen-presenting cells (APC), likely influence immunity in a manner comparable to Th1 and Th2 cells.
The thing that excites me most about this finding is that these immune cells appear to have 'memory' of the molecule brought forth by the antigen-presenting cells," said Klaus Ley, M.
There, protein fragments of the invading pathogen are displayed on the surface of antigen-presenting cells.
An immune response is started by a specialized class of immune system cells called antigen-presenting cells (APCs).
Treatment with autologous antigen-presenting cells activated with the HER-2 based antigen Lapuleucel-T: results of a phase I study in immunologic and clinical activity in HER-2 overexpressing breast cancer
Also an activation of antigen-presenting cells, NK-cells and T-cells is obvious, and a release of different cytokines may be responsible for the various beneficial clinical effects but also the--although rarely observed--adverse reactions during this kind of therapy.
This needle-free technology uses a patch placed on the surface of the skin to deliver vaccines and adjuvants via a group of antigen-presenting cells in the skin (Langerhans cells) to the nearby lymph nodes to produce a sustained immune response.
The influenza vaccine patch uses Iomai's proprietary transcutaneous immunization technology, which delivers vaccine to a group of antigen-presenting cells in the skin called Langerhans cells.
Iomai's TCI technology uses a patch applied to the skin like a bandage and worn for several hours to deliver vaccine and/or adjuvants to a group of antigen-presenting cells (called Langerhans cells) in the skin called that carry the vaccine to the nearby lymph nodes where they prompt a sustained immune response.